Accumulator-plate.



No. 650,258. Patented May 22, 1900.

W. MAJERT.

ACCUMULATOR PLATE.

(Application filed. Dec. 19, 1899.)

(No Model.)

m: umzms PETERs 110.. Puoroumo. WASNINGTON, n. c.

"UNITED STATES PATENT OFFICE.

WILHELM MAJERT, or GRUNAU, GERMANY.

ACCU M u LATOR-PLATE.

SPECIFICATION forming part of Letters Patent NO. 650,258, dated May 22, 1900.

Application filed December 19, 1899. Serial No. 740,913. '(No model.)

To all whom it may concern:

Be it known that I, WILHELM MAJERT, chemist, of Grunau, near Berlin, in the Empire of Germany, have invented certain new and useful Improvements in Accumulator- Plates, of which the following is a full, clear, and exact specification.

The present invention relates to those plates for electric accumulators which are constructed of a base or ground plate provided with ribs on either side running in horizontal, vertical, or any crossing direction. Such plates possess the disadvantage that they are not sufiiciently rigid when the ribs have been formed on both sides.

It is the object of the present invention to remedy this drawback without materially diminishing the effective working surface of the plate. This is attained by so forming the ribs on each side that they do not run quite to the edge, but stop at a short distance from it, leaving a solid marginal wall standing. One such wall is left on each side of the plate at opposite edges. By these means a thoroughly rigid plate is secured with minimum loss of effective surface.

The new storage-battery plate is shown on the accompanying drawing bya sectional perspective View.

a is the base, on each side of which are the opposite sides with parallel ribs, the spaces between them being open at one end and closed by a rib at the other end, said ribs being at opposite ends of the plate, substantially as described.

In witness whereof I have hereunto signed my name, this 1st day of December, 1899, in the presence of two subscribing witnesses.

W ILHELM MAJ ERT.

Witnesses 2 WOLDEMAR HAUPT, WILLIAM MAYNER. 

